The accompanying data are x = advertising share and y = market share for a particular brand of cigarettes during 10 randomly selected years.
x .101 .072 .071 .077 .086 .047 .060 .050 .070 .052
y .135 .127 .122 .086 .079 .076 .065 .059 .051 .039
a) calculate the equation of the estimated regression line. (round to 6 decimal places)
y=
b.) Obtain the predicted market share when the advertising share is 0.09 (round to 5 decimal places)
c.) Compute r2 (round to 3 decimal places)
d.) Calculate the point estimate of o` (round to 4 decimal places)
e.) On how many degrees of freedom is your estimate based?